The Co-Pilot (First Officer) of OceanicFlight 815 likely died on impact when the front section of the plane crashed. His body fell out of the cockpit in "Pilot, Part 1", as Jack, Charlie and Kate entered it looking for the transceiver, suggesting he was not in his seat at the time of and after the crash of the front section of the plane. It can be presumed that his body was left there after the Monster killed the pilot, an event which seemingly barred further excursions to the cockpit by other crash survivors until Season 4.